# Browser Builds
Bitcore and most official submodules work in the browser, thanks to [browserify](http://browserify.org/) (some modules are not fully compatible with web browsers).
The easiest and recommended way to use them, is via [Bower](http://bower.io/), a browser package manager, and get the release bundles. For example, when building an app that uses `bitcore` and `bitcore-mnemonic`, you do:
```sh
bower install bitcore-lib
bower install bitcore-mnemonic
```
You can also use a `bower.json` file to store the dependencies of your project:
```json
{
"name": "Your app name",
"version": "0.0.1",
"license": "MIT",
"dependencies": {
"bitcore-lib": "^0.13.7",
"bitcore-mnemonic": "^1.0.1"
}
}
```
and run `bower install` to install the dependencies.
After this, you can include the bundled release versions in your HTML file:
```html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<script src="bower_components/bitcore/bitcore-lib.min.js"></script>
<script src="bower_components/bitcore-mnemonic/bitcore-mnemonic.min.js"></script>
</head>
<body>
<script type="text/javascript">
var bitcore = require('bitcore-lib');
var Mnemonic = require('bitcore-mnemonic');
// etc...
</script>
</body>
</html>
```
## Building Custom Bundles
If you want to use a specific version of a module, instead of a release version (not recommended), you must run browserify yourself. You can get a minified browser bundle by running the following on the project root folder.
```sh
browserify --require ./index.js:bitcore-lib | uglifyjs > bitcore-lib.min.js
```
```sh
browserify --require ./index.js:bitcore-mnemonic --external bitcore-lib | uglifyjs > bitcore-mnemonic.min.js
```
In many of the modules you can also run the command to build a browser bundle:
```sh
gulp browser
```